DC Comics is an American book publisher, which first began in 1934.
Their most famous members of the DC Universe include, Batman, Superman, Wonder Woman, Green Lantern, The Flash, Supergirl, Arrow, The Joker, Lex Luthor, Sinestro and Catwoman.
They are also responsible for the series Watchmen and V for Vendetta as well as teams such as The Justice League, Suicide Squad and Teen Titans.
The 'DC' stands for Detective Comics.